A uniform cylinder of radius is spinned about its axis to the angular velocity and then placed into a corner, see the figure. The coefficient of friction between the corner walls and the cylinder is

The normal reaction imparted by the wall on the cylinder is |
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a) |
b) |
c) |
d) |

A uniform cylinder of radius is spinned about its axis to the angular velocity and then placed into a corner, see the figure. The coefficient of friction between the corner walls and the cylinder is

The normal reaction imparted by the wall on the cylinder is |
|||||||

a) |
b) |
c) |
d) |

1 Answer

127 votes

**(b)**

Construct the free-body diagram of the cylinder:

Calculate the force acting on the cylinder: As the centre of mass of the cylinder does not accelerate

(i)

(ii)

Solving these equations:

127 votes

127